We've put together a list of the most prominent search engines, for your reference.

Overture [ Submit Info ]
Promote your site on Overture.  

FindWhat [ Submit Info ]
Promote your site on FindWhat.  

Google [ Submit Info ]
Promote your site on Google.

Kanoodle [ Submit Info ]
Over 1 billion monthly searches.

ah-ha [ Submit Info ]
Promote your site on ah-ha.

Looksmart [ Submit Page ]
Reach 77% of US Web users.

Sprinks [ Submit Info ]
Promote your site on Sprinks.

Epilot [ Submit Info ]
Promote your site on Epilot.

goClick [ Submit Info ]
Promote your site on goClick.

Search123 [ Submit Info ]
Promote your site on Search123.

7Search [ Submit Info ]
Promote your site on 7Search.

Open Directory Project [ Submit Page ]
Humans Do it Better.